Arm brace



FIG. 1 is a top-rear-left isometric view of an arm brace, showing mydesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view;

FIG. 4 is a front side view of the arm brace shown in an unfoldedconfiguration for clarity of disclosure;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a right view thereof; and,

FIG. 9 is a left view thereof.

The broken line showing in the Figures shows portions of the arm braceand forms no part of the claimed design.

CLAIM The ornamental design for an arm brace, as shown and described.